設定客戶端行為

Windows Communication Foundation （WCF） 會以兩種方式設定行為：藉由參考行為組態 ，也就是在用戶端應用程式組態檔的 <behavior> 區段中定義，或以程式設計方式在呼叫應用程式中定義。 本主題描述這兩種方法。

使用組態檔時，行為組態是組態設定的具名集合。 每個行為組態的名稱都必須是唯一的。 此字串用於端點組態的 屬性中 behaviorConfiguration ，以將端點連結至行為。

範例 1

下列組態程式代碼會定義稱為 myBehavior的行為。 用戶端端點在behaviorConfiguration屬性中參考此行為。

<configuration>  
    <system.serviceModel>  
        <behaviors>  
            <endpointBehaviors>  
                <behavior name="myBehavior">  
                    <clientVia />  
                </behavior>  
            </endpointBehaviors>  
        </behaviors>  
        <bindings>  
            <basicHttpBinding>  
                <binding name="myBinding" maxReceivedMessageSize="10000" />  
            </basicHttpBinding>  
        </bindings>  
        <client>  
            <endpoint address="myAddress" binding="basicHttpBinding" bindingConfiguration="myBinding" behaviorConfiguration="myBehavior" contract="myContract" />  
        </client>  
    </system.serviceModel>  
</configuration>  

以程式設計方式使用行為模式

您也可以在開啟用戶端之前，先在 Windows Communication Foundation （WCF） 用戶端物件或用戶端通道 Factory 物件上尋找適當的 Behaviors 屬性，以程式設計方式設定或插入行為。

範例 2

下列程式代碼範例示範如何在建立通道物件之前，程式設計地透過存取從 Behaviors 屬性傳回的 ServiceEndpoint 物件上的 Endpoint 屬性來插入行為。

public class Client
{
  public static void Main()
  {
    try
    {
      // Picks up configuration from the config file.
      ChannelFactory<ISampleServiceChannel> factory
        = new ChannelFactory<ISampleServiceChannel>("WSHttpBinding_ISampleService");

      // Add the client side behavior programmatically to all created channels.
      factory.Endpoint.Behaviors.Add(new EndpointBehaviorMessageInspector());

      ISampleServiceChannel wcfClientChannel = factory.CreateChannel();

      // Making calls.
      Console.WriteLine("Enter the greeting to send: ");
      string greeting = Console.ReadLine();
      Console.WriteLine("The service responded: " + wcfClientChannel.SampleMethod(greeting));

      Console.WriteLine("Press ENTER to exit:");
      Console.ReadLine();

      // Done with service.
      wcfClientChannel.Close();
      Console.WriteLine("Done!");
    }
    catch (TimeoutException timeProblem)
    {
      Console.WriteLine("The service operation timed out. " + timeProblem.Message);
      Console.Read();
    }
    catch (FaultException<SampleFault> fault)
    {
      Console.WriteLine($"SampleFault fault occurred: {fault.Detail.FaultMessage}");
      Console.Read();
    }
    catch (CommunicationException commProblem)
    {
      Console.WriteLine("There was a communication problem. " + commProblem.Message);
      Console.Read();
    }
  }

Public Class Client
    Public Shared Sub Main()
        Try
            ' Picks up configuration from the config file.
            Dim factory As New ChannelFactory(Of ISampleServiceChannel)("WSHttpBinding_ISampleService")

            ' Add the client side behavior programmatically to all created channels.
            factory.Endpoint.Behaviors.Add(New EndpointBehaviorMessageInspector())

            Dim wcfClientChannel As ISampleServiceChannel = factory.CreateChannel()

            ' Making calls.
            Console.WriteLine("Enter the greeting to send: ")
            Dim greeting As String = Console.ReadLine()
            Console.WriteLine("The service responded: " & wcfClientChannel.SampleMethod(greeting))

            Console.WriteLine("Press ENTER to exit:")
            Console.ReadLine()

            ' Done with service. 
            wcfClientChannel.Close()
            Console.WriteLine("Done!")
        Catch timeProblem As TimeoutException
            Console.WriteLine("The service operation timed out. " & timeProblem.Message)
            Console.Read()
        Catch fault As FaultException(Of SampleFault)
            Console.WriteLine("SampleFault fault occurred: {0}", fault.Detail.FaultMessage)
            Console.Read()
        Catch commProblem As CommunicationException
            Console.WriteLine("There was a communication problem. " & commProblem.Message)
            Console.Read()
        End Try
    End Sub

另請參閱

• <行為>